Finding the Fourth Proportional to 418.79, 628.10 and 110.63
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Solution
The fourth proportional to 418.79, 628.10 and 110.63 is: 165.92
Step by Step Solution
- Step 1: Write the proportion equation
418.79 : 628.10 = 110.63 : x - Step 2: Convert to fraction form
418.79/628.10 = 110.63/x - Step 3: Cross multiply
418.79x = 628.10 × 110.63 - Step 4: Simplify right side
418.79x = 69,488.13 - Step 5: Solve for x
x = 69,488.13/418.79 - Step 6: Final answer
x = 165.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.